Diptera.info :: Identification queries :: Diptera (adults)
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 Drosophila repleta - group
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| Carnifex |
Posted on 20-08-2022 16:53
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 Member Location: Vienna, Austria Posts: 1916 Joined: 23.06.15 |
I don't know how D. mercatorum is supposed to look like. According to Bächli's key, there shouldn't be a dark costal spot as in D. repleta - but the size of the light lateral spots and the thin distal stripes on the tergites (>1/2 width in D. repleta vs. ~1/3 in D. mercatorum) raised my suspicion here. Additionally, Jan Maca once mentioned in a comment that the presence of the costal spot should not be overrated. So, here's my fly to be discussed. Carnifex attached the following image:  [226.36Kb] Cheers, Lorin Font Color All requests are from the urban area of Vienna, if not otherwise stated. My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated. |
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| eklans |
Posted on 20-08-2022 17:12
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Member Location: Franconia, Germany Posts: 3696 Joined: 11.11.18 |
Can it be D. hydei?
Greetings, Eric Kloeckner |
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| Carnifex |
Posted on 20-08-2022 17:26
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Member Location: Vienna, Austria Posts: 1916 Joined: 23.06.15 |
No, D. hydei is much darker, with no lateral light spots. Here's one from today: 
Cheers, Lorin Font Color All requests are from the urban area of Vienna, if not otherwise stated. My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated. |
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| eklans |
Posted on 20-08-2022 17:37
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Member Location: Franconia, Germany Posts: 3696 Joined: 11.11.18 |
Ok, that's how my D. hydei look - I thought it were reflections.
Greetings, Eric Kloeckner |
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| Jan Maca |
Posted on 20-08-2022 20:39
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Member Location: Posts: 1207 Joined: 25.03.10 |
Difficult to judge. The pale lateral spots on abdomen look strange, as they reach anterior margin of tergites. Also, the tibial bases have a slight darker band and the gena seems wide - these are characters of D. buzzatii. It would be interesting what a molecular analysis would say. |
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| Carnifex |
Posted on 20-08-2022 21:22
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Member Location: Vienna, Austria Posts: 1916 Joined: 23.06.15 |
I didn't consider that species, as there is no Opuntia around - but that species might have adapted to other food sources meanwhile? Exciting! Unfortunately, it got startled by my attempts to get better pictures... 
Cheers, Lorin Font Color All requests are from the urban area of Vienna, if not otherwise stated. My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated. |
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